Dairy Products. Milk doesn't contain yeast, but some other dairy products are made by fermentation, which means that they may contain yeast. If you're trying to avoid yeast, don't eat yogurt, kefir, buttermilk or cheese. Butter, cream and ice cream, however, are not likely to contain yeast.airy Products. Milk doesn't contain yeast, but some other dairy products are made by fermentation, which means that they may contain yeast. If you're trying to avoid yeast, don't eat yogurt, kefir, buttermilk or cheese. Butter, cream and ice cream, however, are not likely to contain yeast.
Flex SealÂ® is now available in White, Brown, Almond, Silver, Green, Blue, Red, Terra-Cotta, and Yellow!
We put this spray sealant to the test. Consumer Reports magazine: June 2012. Find Ratings. In our scaled-down version of the Flex Seal promo, our skipper stayed dry (above right). The claim. Flex Seal âstops leaks fast and is the easy way to coat, seal and protect almost anything,â the manufacturer says. In a promo video, pitchman Phil Swift applies Flex Seal to a screen door inserted in the bottom of a rowboat, then launches the boat with himself as skipper (left side of the photo above).